Okay, if you want succubi with wings… (or Balrogs for that matter 😉 )
My suggestion is to save a pic without background, one with a background and to add the wings in postwork.
I’ve tried my luck at enlarging the basic wings just to that end. 😉
I suppose those small wings where meant to fit in ePic’s screen but side effect is they feel a tad wimpish. 🙂